<!DOCTYPE html>
<html>

	<head>
		<meta charset="utf-8" />
		<title>vuejs生命周期</title>
		<script src="js/vuejs-2.5.16.js"></script>
	</head>

	<body>
		<div id="app">
			{{message}}
		</div>
	</body>
	<script>
		var vm = new Vue({
			el: "#app",
			data: {
				message: 'hello world'
			},
			beforeCreate: function() {
				console.log(this);
				showData('创建vue实例前', this);
			},
			created: function() {
				showData('创建vue实例后', this);
			},
			beforeMount: function() {
				showData('挂载到dom前', this);
			},
			mounted: function() {
				showData('挂载到dom后', this);
			},
			beforeUpdate: function() {
				showData('数据变化更新前', this);
			},
			updated: function() {
				showData('数据变化更新后', this);
			},
			beforeDestroy: function() {
				vm.test = "3333";
				showData('vue实例销毁前', this);
			},
			destroyed: function() {
				showData('vue实例销毁后', this);
			}
		});

		function realDom() {
			console.log('真实dom结构：' + document.getElementById('app').innerHTML);
		}

		function showData(process, obj) {
			console.log(process);
			console.log('data 数据：' + obj.message)
			console.log('挂载的对象：')
			console.log(obj.$el)
			realDom();
			console.log('------------------')
			console.log('------------------')
		}
		// vm.message = "good...";
		vm.$destroy();
	</script>

</html>